Patents by Inventor Karl-Georg Boettger

Karl-Georg Boettger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Use of polysulfide-free preparations as an additive for loam or clay-based construction materials
    Patent number: 6656994
    Abstract: The use is described of polysulfide-free preparations comprising, based on solids content, from 40 to 99.5% by weight of at least one water-dispersible copolymer and from 0.5 to 10% by weight of at least one alkoxylated ionic or nonionic emulsifier, as additives for construction materials based on loam or clay. The building materials based on loam or clay and comprising the preparation are described, as are the use of the construction materials and a process for treating construction materials with the preparation.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: December 2, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Stefan Dreher, Joachim Roser, Joachim Pakusch, Dietbert Knöfel, Karl-Georg Boettger